Cumulative sum of previous rows
I had an update statement that took 3 minutes to run after this code change it took 6 seconds.
2015-03-27 (first published: 2014-05-08)
34,837 reads
Ben Kubicek
- Interests: Jesus, playing guitar singing, most sports, running, biking, triathlons
2015-02-17
1,959 reads
2015-01-26
12,067 reads
Never give up
When facing a problem you aren't sure you can solve, keep working on it and believe in yourself.
2014-07-08
238 reads
Why Primary Keys can be important on large tables
I inherited a database that was getting large and not performing well. After adding primary keys life got better.
2014-06-30
14,756 reads
2014-06-17
231 reads
Try to focus on the positive
When we focus on negative things we get more negative. Be thankful for something positive.
2014-06-10
179 reads
What is your default database set to?
Some people set their default database to the database they use most often. This can cause issues when a restore fails.
2013-11-14
7,515 reads
2012-12-19
2,248 reads
A simple math expression solver
Ben Kubicek wrote a recursive function that solves simple math expressions in a select statement. Read about this creative use of T-SQL.
2011-11-21
5,935 reads
Blogs
Excellent article on securing msdb
By Brian Kelley
Fabiano Amorim has written an excellent article at Simple Talk on securing msdb. Here's...
T-SQL Tuesday #201: Temp Tables
By Steve Jones
This month we have a new host, which I am grateful for. So many...
When Do You Reach For A #temp Table?
I needed to do some research because there is more to #temp tables than...
Forums
OUTER APPLY Fundamentals: Part 2
Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2
Building Great Software
Comments posted to this topic are about the item Building Great Software
The Range of Customers
Comments posted to this topic are about the item The Range of Customers
Question of the Day
The Range of Customers
I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC):
orderid orderdate customerid complete 3 2025-05-10 00:00:00.0002 1 21 2024-01-10 00:00:00.0003 1 15 2023-10-28 00:00:00.0004 1 13 2025-03-08 00:00:00.0006 1 11 2024-04-02 00:00:00.0007 1If I run this query, how many rows are returned?
SELECT * from dbo.OrderHeader where customerid between 3 and '6'See possible answers